The North-East Arctic cod stock's consumption of various prey species 1984-1989

Abstract

The North-East Arctic cod stock's consumption of different prey species has earlier been calculated by Mehl (1989) for the period 1984-1986. However, a new model to describe gastric evacuation on cod has now been presented by dos Santos (1990). This model is based on extensive feeding experiments with relevant prey items, done at relevant tempreature conditions. This model is combined with the stomach content data to give consumption estimates for each of the years 1984-1989. The results are compared and judged against data on the individual cod growth, daily rations and food conversion efficiency.